Never has a multi-functional device been so versatile as this ELECTRO SHOCKr LIGHTNING WAND! The complete set consists of a high-frequency vibration wand with an insulated handle, as well as 4 different glass probes for different stimulation areas. Just click the desired probe into the wand and adjust the electro frequency by turning the knob at the bottom of the wand clockwise (higher) or anti-clockwise (lower). Accelerating the blood circulation in the desired areas will take you to a higher level of stimulation and intensify your orgasms! The 4 different, very sturdy, glass probes are well insulated and vary in length from 11.5 cm (4.6") to 15.5 cm (6.1"). The wand itself is made from very strong ABS and measures 21.5 cm (8.5"). Do NOT use E-Stim with a heart defect or pacemaker without prior medical consultation. Do NOT use E-stim during pregnancy. Do NOT use E-stim in conjunction with flammable objects/liquids.